Dip-formed synthetic polyisoprene latex articles with improved intraparticle and interparticle crosslinks
    1.
    发明授权
    Dip-formed synthetic polyisoprene latex articles with improved intraparticle and interparticle crosslinks 有权
    具有改进的颗粒内和颗粒间交联的浸渍合成聚异戊二烯胶乳制品

    公开(公告)号:US09074029B2

    公开(公告)日:2015-07-07

    申请号:US14176608

    申请日:2014-02-10

    摘要: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis. The films exhibit high tensile strength, tensile modulus, tear strength, burst pressure and burst volume.

    摘要翻译: 合成聚异戊二烯胶乳乳液具有预硫化组合物和后硫化组合物。 预硫化组合物包含由二硫代氨基甲酸锌催化破坏的具有高S8环结构的可溶性硫。 存在于预硫化组合物中的表面活性剂润湿合成的聚异戊二烯颗粒,并将小尺寸的硫和促进剂分子渗透到这些颗粒的内部,从而预先硫化颗粒。 通过异丙醇指数试验验证预硫化程度。 胶乳乳液具有后硫化组合物,其具有在后硫化固化循环中交联颗粒间区域的促进剂。 浸渍的合成聚异戊二烯制品在颗粒间和颗粒内区域基本上均匀地固化,并且可靠地表现出高的交联密度,TEM中双键的均匀分布和边界处的锌偏析或通过电子微探针分析的原始颗粒。 该膜具有高拉伸强度,拉伸模量,撕裂强度,爆裂压力和爆破体积。

    Latex coated high performance polyethylene fabrics
    2.
    发明授权
    Latex coated high performance polyethylene fabrics 有权
    乳胶涂层高性能聚乙烯织物

    公开(公告)号:US08883657B2

    公开(公告)日:2014-11-11

    申请号:US13716606

    申请日:2012-12-17

    摘要: Provided among other things is a fabric comprising: a HPPE base fabric; coated thereon a primer polymer; and coated on the primer polymer a liquid-resistant polymer layer. The primer polymer can be a polyurethane. The base fabric can comprise an adhesion promoter that can be a plasticizer. The adhesion promoter can be a sulfonic acid plasticizer. The adhesion promoter can contain an active hydrogen, carboxy, carboxyloxy or acid group. The fabric can comprise, coated on the liquid-resistant polymer layer, an additional polymer layer. The additional polymer layer can comprise carnauba wax in an amount from about 1 to 3% Phr. The liquid-resistant polymer layer can be a NBR layer. In certain embodiments, the fabric shows no delamination of the liquid-resistant polymer layer after an adherence test. The primer layer can be a polyurethane layer. These features can be present in any combination.

    摘要翻译: 其中提供了一种织物,其包括:HPPE基底织物; 在其上涂布底漆聚合物; 并在底漆聚合物上涂布耐液聚合物层。 底漆聚合物可以是聚氨酯。 基底织物可以包含可以是增塑剂的粘合促进剂。 粘合促进剂可以是磺酸增塑剂。 粘合促进剂可含有活性氢,羧基,羧基氧基或酸基团。 织物可以包含涂覆在耐液聚合物层上的另外的聚合物层。 额外的聚合物层可包含量为约1至3%Phr。的巴西棕榈蜡。 耐液聚合物层可以是NBR层。 在某些实施方案中,织物在粘附试验后不显示耐液聚合物层的分层。 底漆层可以是聚氨酯层。 这些特征可以任何组合存在。

    DIP-FORMED SYNTHETIC POLYISOPRENE LATEX ARTICLES WITH IMPROVED INTRAPARTICLE AND INTERPARTICLE CROSSLINKS

    公开(公告)号:US20140186628A1

    公开(公告)日:2014-07-03

    申请号:US14176608

    申请日:2014-02-10

    IPC分类号: C08F136/08 B32B27/32

    摘要: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis. The films exhibit high tensile strength, tensile modulus, tear strength, burst pressure and burst volume.

    摘要翻译: 合成聚异戊二烯胶乳乳液具有预硫化组合物和后硫化组合物。 预硫化组合物包含由二硫代氨基甲酸锌催化破坏的具有高S8环结构的可溶性硫。 存在于预硫化组合物中的表面活性剂润湿合成的聚异戊二烯颗粒,并将小尺寸的硫和促进剂分子渗透到这些颗粒的内部,从而预先硫化颗粒。 通过异丙醇指数试验验证预硫化程度。 胶乳乳液具有后硫化组合物,其具有在后硫化固化循环中交联颗粒间区域的促进剂。 浸渍的合成聚异戊二烯制品在颗粒间和颗粒内区域基本上均匀地固化,并且可靠地表现出高的交联密度,TEM中双键的均匀分布和边界处的锌偏析或通过电子微探针分析的原始颗粒。 该膜具有高拉伸强度,拉伸模量,撕裂强度,爆裂压力和爆破体积。

    Polymer bonded fibrous coating on dipped rubber articles skin contacting external surface
    5.
    发明授权
    Polymer bonded fibrous coating on dipped rubber articles skin contacting external surface 有权
    浸渍橡胶制品上的聚合物粘合纤维涂层皮肤接触外表面

    公开(公告)号:US08709573B2

    公开(公告)日:2014-04-29

    申请号:US12408336

    申请日:2009-03-20

    IPC分类号: B32B25/02 B05D3/02

    摘要: A latex glove article with a fibrous coating bonded to the skin-contacting surface. Long length soft moisture absorbing fibers are attached to latex layer of a glove with a thin layer of polymeric latex adhesive forming a fibrous lining. The long length fibers extend or project from the polymeric latex adhesive coating. The fibers penetrate the polymeric latex adhesive layer at one end or both end of the fiber to a depth of about 60% to about 100% of the adhesive thickness, leaving a substantial portion of the fiber available for soft contact with skin and sweat absorption. Due to the substantial thickness of the fibrous lining, which is between about 4 and about 100 times the thickness of the thin layer of polymeric latex adhesive, an air gap is created between skin and the impervious latex layer establishing continual evaporation of absorbed sweat and evaporative cooling.

    摘要翻译: 具有粘合到皮肤接触表面的纤维涂层的乳胶手套制品。 长度柔软的吸湿纤维通过形成纤维衬里的聚合物胶乳粘合剂薄层附着在手套的胶乳层上。 长纤维从聚合胶乳粘合剂涂层延伸或突出。 纤维在纤维的一端或两端穿透聚合物胶乳粘合剂层至粘合剂厚度的约60%至约100%的深度,留下大部分纤维可用于与皮肤的软接触和吸汗。 由于纤维内衬的厚度大约在聚合物胶乳粘合剂薄层厚度的约4至约100倍之间,因此皮肤和不透水乳胶层之间产生气隙,从而建立吸收的汗液和蒸发的持续蒸发 冷却。

    ABRASION RESISTANT GLOVE
    6.
    发明申请
    ABRASION RESISTANT GLOVE 有权
    耐磨手套

    公开(公告)号:US20140109290A1

    公开(公告)日:2014-04-24

    申请号:US14113706

    申请日:2012-04-26

    IPC分类号: A41D19/015

    CPC分类号: A41D19/01505

    摘要: A glove comprising an elastomeric coating with a particle filler and a method of making such a glove. Specifically, the glove comprises a knitted liner formed from at least one yarn; a elastomeric coating covering at least a portion of the knitted liner; and wherein the elastomeric coating comprises a filler particle having a hardness greater than the hardness of the elastomeric coating.

    摘要翻译: 包括具有颗粒填料的弹性体涂层的手套和制造这种手套的方法。 具体地,手套包括由至少一根纱线形成的针织衬里; 覆盖所述针织衬里的至少一部分的弹性涂层; 并且其中所述弹性体涂层包含具有大于所述弹性体涂层的硬度的硬度的填料颗粒。

    Latex gloves and articles with geometrically defined surface texture providing enhanced grip and method for in-line processing thereof
    7.
    发明授权
    Latex gloves and articles with geometrically defined surface texture providing enhanced grip and method for in-line processing thereof 有权
    乳胶手套和具有几何定义的表面纹理的制品提供增强的抓地力和用于在线处理的方法

    公开(公告)号:US08522363B2

    公开(公告)日:2013-09-03

    申请号:US12925313

    申请日:2010-10-19

    IPC分类号: A41D19/00

    摘要: Latex articles with geometrically defined surface structure providing enhanced grip characteristics in dry, wet or oily environment; and a method of making same comprising applying a polymeric coagulant coating to a smooth former surface, wherein the coating becomes tacky during drying, applying discrete coagulant particles of selected size, shape and distribution to the tacky coating to attach and protrude from the former surface with the polymeric coagulant coating, dipping the former into an aqueous latex emulsion, wherein the polymeric coagulant coating and the discrete coagulating particles destabilize the latex, thereby developing a latex layer, vulcanizing and stripping the latex article inside out, and dissolving the discrete coagulant particles in water or suitable solvents to reveal the geometrically designed texture with pre-selected size, shape and distribution of impressions providing improved dry, wet and oily surface grip by removal of a fluid boundary layer.

    摘要翻译: 具有几何定义的表面结构的乳胶制品在干燥,潮湿或油性环境中提供增强的抓握特性; 以及一种制备方法,包括将聚合物凝结剂涂层施加到光滑的成型表面上,其中涂层在干燥期间变得粘性,将选定尺寸,形状和分布的离散的凝结剂颗粒施加到粘性涂层上以从前表面附着和突出, 聚合物凝结剂涂层,将前者浸入水性胶乳乳液中,其中聚合物凝结剂涂层和离散的凝结颗粒使胶乳不稳定,从而开发胶乳层,将胶乳制品硫化和剥离出来,并将离散的凝结剂颗粒溶解在 水或合适的溶剂,以显示具有预选尺寸,形状和分布的几何设计的纹理,通过去除流体边界层提供改进的干燥,湿润和油性表面抓地力。

    Latex Coated High Performance Polyethylene Fabrics
    8.
    发明申请
    Latex Coated High Performance Polyethylene Fabrics 有权
    乳胶涂层高性能聚乙烯织物

    公开(公告)号:US20130152273A1

    公开(公告)日:2013-06-20

    申请号:US13716606

    申请日:2012-12-17

    IPC分类号: A41D19/00 D06N3/18

    摘要: Provided among other things is a fabric comprising: a HPPE base fabric; coated thereon a primer polymer; and coated on the primer polymer a liquid-resistant polymer layer. The primer polymer can be a polyurethane. The base fabric can comprise an adhesion promoter that can be a plasticizer. The adhesion promoter can be a sulfonic acid plasticizer. The adhesion promoter can contain an active hydrogen, carboxy, carboxyloxy or acid group. The fabric can comprise, coated on the liquid-resistant polymer layer, an additional polymer layer. The additional polymer layer can comprise carnauba wax in an amount from about 1 to 3% Phr. The liquid-resistant polymer layer can be a NBR layer. In certain embodiments, the fabric shows no delamination of the liquid-resistant polymer layer after an adherence test. The primer layer can be a polyurethane layer. These features can be present in any combination.

    摘要翻译: 其中提供了一种织物,其包括:HPPE基底织物; 在其上涂布底漆聚合物; 并在底漆聚合物上涂布耐液聚合物层。 底漆聚合物可以是聚氨酯。 基底织物可以包含可以是增塑剂的粘合促进剂。 粘合促进剂可以是磺酸增塑剂。 粘合促进剂可含有活性氢,羧基,羧基氧基或酸基团。 织物可以包含涂覆在耐液聚合物层上的另外的聚合物层。 额外的聚合物层可包含量为约1至3%Phr。的巴西棕榈蜡。 耐液聚合物层可以是NBR层。 在某些实施方案中,织物在粘附试验后不显示耐液聚合物层的分层。 底漆层可以是聚氨酯层。 这些特征可以任何组合存在。

    Production of gloves and other articles of flexible polymer material
    9.
    发明授权
    Production of gloves and other articles of flexible polymer material 有权
    生产手套等物品的柔性聚合物材料

    公开(公告)号:US08192834B2

    公开(公告)日:2012-06-05

    申请号:US12645569

    申请日:2009-12-23

    IPC分类号: B32B3/26 B32B9/00

    摘要: A process for producing an article in a flexible foamed polymer material, including treating a former with a coagulant; dipping the treated former in a latex foam mixture to form a layer of the mixture on the former that includes air cells; curing the layer to gel the foam mixture to a cross-linked open cell structure; and stripping the layer from the former; where the latex foam mixture includes a natural latex polymer as a primary polymer component, and a synthetic latex polymer as a secondary polymer component, which synthetic latex polymer is selected to enhance the evenness and/or fineness of said open cell structure.

    摘要翻译: 一种制备柔性泡沫聚合物材料的制品的方法,包括用凝结剂处理前者; 将经处理的前体浸渍在胶乳泡沫混合物中以在前者上形成包含气泡的混合物层; 固化该层以将泡沫混合物凝胶成交联的开孔结构; 并从前者剥离层; 其中胶乳泡沫混合物包括作为主要聚合物组分的天然胶乳聚合物和作为第二聚合物组分的合成胶乳聚合物,该合成胶乳聚合物被选择以增强所述开孔结构的均匀度和/或细度。